In the video she calls Busker type music 'Lead Sheets'. If you had the music score of what you should actually play it would look very complicated, with lots of half notes, and 'tied' notes (indicating you play the note early and hold it over). Very difficult to follow! So for any of you that religiously 'play from the dots' and think you are playing it as it should be played because that is what is written on the music score, think again! You have to listen to the piece and play the melody phrasing 'by ear'.
A lot of what she explains in the video you will already know. She is a pianist, and chord symbols are not really meaningful for a pianist as the essence of playing a piano is playing notes .. not forming chords. The video is worth watching right through as it gives another perspective to playing music.
To see what she is doing more clearly it is best to watch this video FULL SCREEN.
Click on the 'square' indicated when the video starts.

Then to get back to the normal screen after, click the symbol indicated below.

Lead Sheet Basics | What they are. How to use them. Where to find them.
Hugh